Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
> filter = [ "a|drbd|", "r|.*|" ] yes, something like this is in place > write_cache_state = 0 I have write_cache_state = 1 (default) but this is only filtering cache as I understand and /etc/lvm/cache is empty on both nodes > Do you use some custom disk caching module like flashcache? I'm not sure what is flashcache so I think don't use it. > To avoid the dual primary mode I have put all storage on an a HA iSCSI SAN, then drbd can be used in primary/secondary mode. If you want I can send you my setup notes using centos 6.4 drbd, tgt and pacemaker. SAN always can be considered as a last resort but dual-primary drbd is a goal because we only need two hosts and no very expensive SANs. Best regards, Stanislav